dialog工具，让脚本迈向图形化

如果你知道你的脚本程序只需要运行在linux控制台上，则可以使用dialog工具命令，它以一种非常整洁的方式润色你的脚本程序。这个命令使用文本模式的图形和色彩，但它的确提供了友好的面向图形的解决方案。

#!/bin/sh

dialog --title "Linux environment deploy" --menu "select soft:" 20 40 10 1 "mysql" 2 "nginx"  3 "php" 4 "php-extension" 5 "mongodb" 6 "redis" 7 "memcached" 8 "set ulimit" 9 "set sysctl" 10 "varnish" 2>_1.txt
PACKAGES=$(cat _1.txt)

install_mysql(){
if [ ! -f ./mysql-${MYSQL_VERSION}.tar.gz ];then
	_V=$(echo ${MYSQL_VERSION} | awk -F. '{print $2}')
	wget http://cdn.mysql.com//Downloads/MySQL-5.$_V/mysql-${MYSQL_VERSION}.tar.gz 2>&1 | \
	stdbuf -o0 awk '/[.] +[0-9][0-9]?[0-9]?%/ { print substr($0,63,3) }'| \
	dialog --gauge "Download mysql-${MYSQL_VERSION}.tar.gz" 10 100
fi

if [ ! -d ${INSTALL_PATH} ]; then
	dialog --infobox "decompression mysql-${MYSQL_VERSION}.tar.gz" 5 40
	tar zxf mysql-${MYSQL_VERSION}.tar.gz
	cd mysql-${MYSQL_VERSION}
	cmake -DCMAKE_INSTALL_PREFIX=${INSTALL_PATH} \
	-DMYSQL_DATADIR=${INSTALL_PATH}/var \
	-DSYSCONFDIR=/etc \
	-DMYSQL_UNIX_ADDR=/tmp/mysql.sock \
	-DMYSQL_TCP_PORT=3306 \
	-DDEFAULT_CHARSET=utf8 \
	-DDEFAULT_COLLATION=utf8_general_ci \
	-DEXTRA_CHARSETS=all 
	if [ "$?" -eq 0 ];then
		make && make install
	else
		exit 1
	fi

	if [ ! `cat /etc/group | awk -F: '{print $1}'| grep mysql` ];then
		groupadd mysql
	fi
	if [ ! `cat /etc/passwd | awk -F: '{print $1}'| grep mysql` ];then
		useradd -M -g mysql -s /sbin/nologin mysql
	fi

	cp ../profile.d/mysql.sh /etc/profile.d/
	echo "${INSTALL_PATH}/lib" > /etc/ld.so.conf.d/mysql.conf
	ldconfig
	source /etc/profile.d/mysql.sh
	echo
	echo "init ..."
	echo
	mkdir ${INSTALL_PATH}/var
	chown -R mysql:mysql ${INSTALL_PATH}/var
	if [ -f /etc/my.cnf ];then
		rm -rf /etc/my.cnf
	fi
	${INSTALL_PATH}/scripts/mysql_install_db --user=mysql --basedir=${INSTALL_PATH} --datadir=${INSTALL_PATH}/var --explicit_defaults_for_times
	if [ "$?" -eq 0 ];then
		echo "init success."
	else
		exit 1
	fi
	cp  support-files/mysql.server  /etc/rc.d/init.d/mysqld
	cp ../conf/my.cnf /etc/
	chmod a+x /etc/rc.d/init.d/mysqld
	mkdir ${INSTALL_PATH}/mysql_binlog
	mkdir ${INSTALL_PATH}/logs
	chown -R mysql.mysql ${INSTALL_PATH}/logs
	chown -R mysql.mysql ${INSTALL_PATH}/mysql_binlog
	/etc/init.d/mysqld start
	chkconfig --add mysqld
	chkconfig mysqld on
else
		echo "mysql directory is exist. will be quit"
		exit 0
fi
}

if [ "$PACKAGES" = "1" ]; then
        dialog --title "MySQL Version" --inputbox "输入mysql版本(如：5.7.9，会从官网下载):" 10 50 2>_1.txt
        MYSQL_VERSION=$(cat _1.txt)
        dialog --title "ENTER INSTALL PATH" --inputbox "请输入安装路径：" 10 40 2>_1.txt
        INSTALL_PATH=$(cat _1.txt)
        install_mysql
else
        exit 1
fi

　　

 dialog工具，让脚本迈向图形化